ANEXO 5. MANUALES DE DIVERSOS ELEMENTOS DEL EQUIPO DE PROFUNDIDAD Anexo 5.1. Manual de la válvula de ensayo de solenoide

Anexo 5.2. Manual del “packer” con dispositivo de muelles

ANEXO 5.1: MANUAL DE LA VALVULA DE ENSAYO DE

SOLENOIDE

La válvula de solenoide corresponde a un diseño efectuado

específicamente para el ITGE por la empresa Valcor Engineering

Corporation. Su funcionamiento y características técnicas se encuentran

descritos en el apartado 2.3.1. En el documento referido a la celda de

presión se incluyen además los ensayos efectuados con dicha válvula por

el ITGE para comprobar sus características técnicas.

El presente Anexo incluye la siguiente documentación:

- Test de calidad de las válvulas efectuado por Valcor

Información proporcionada por Valcor sobre las diferentes

características de la válvula. (Fotocopia de diversos FAX)

I Figura con elementos que componen la válvula -

I Precio de las válvulas y personas de contacto

ALCOR ENGLKEERMG cowounof;

W'S

VALCOR ENGINEERING CORPORATION 2 IAWRENCE ROAD. SPRINGFIELD. NEW JERSEY 07081. U S.A *(201) 467.8400

T W X 710.996.5976 CABLE VALCOR

FAX (201)467-8382

January 12, 1994

INSTITUTO TECNOLOGICO GEOMINERO DE ESPmA ( A la atención de Carlos Martinez Navarrete) C/Rios Rosas 23 28003 Madrid SPAIN

Attention: Mr. Carlos Martinez Navarrete

Subject: Borehole injection test valve

Reference: Your fax letter of 9 Dec 1993

Dear M r . Navarrete:

1 was pleased to receive your facsimile letter and find that Out proposed valve appears to solve your problem. Regarding your C' technical questions, 1 have tried to answer them below.

1. Whlch are the material8 (CRES 430, 17-4, 440-C, Buna-N) in contact with fluid? Are they stalnless?

The valve contains parts manufactured from al1 of the mate- rials listed above. The valve body is 440-C. The solenoid assembly and plunger is 430. The inlet assembly 1s 17-4. These materials are al1 stainless. The O-rlngs are Buna-N. Al1 of the materials listed will come in contact with the fluid (water) and are fully corrosion resistant.

2. Could the valve support a weight of 225 kg?

We assume this question implies that the valve is required to support the weight of the pipe. The valve will support 225 kg in a static condition with the force applied axially through the centerline of the valve. Since we do not know al1 of your conditions, we have not analyzed dynamlc forces, shock, vibration or bending loads.

3. The fluid 1s water.

The proposed valve will function properly ln water. We assume you are using either tap water or distilled water in your application, rather than deionized water (highly corro- sive). Although our valve will handle water with a high

VALCOR ENGINEERING t

Page 2 ITGE

degree of entrained minerals and contaminants, we would suggest an upstream filter and a minimum of minerals. mineral content could cause a buildup over time, possibly shortening life and increasing pressure drop.

High

4, The valve would be installed in a pipe of 40 mm ID and 50 mm OD. Please change the fittings for my requirements.

We will incorporate fittings to accommodate your pipe dimen- sions. Please inform us of the exact configuration of your pipe so we can devise a method of attaching the valve to your pipe. straight threaded fitting or a butt weld. pipe end with tolerances would help us. Since there are so many industrial and military thread standards (both English and metric) we would appreciate if you would identify your preference. If you have no preference, we would recommend the US military standard MS33649. this specification.

We wou1.d expect either a standard pipe thread, A drawing of your

1 have enclosed a copy of

5. Reduce the wall thickness to reach 3.0 bar paxlmum at 50 l/min.

We will reduce the wall thickness to optimize the pressure drop through the valve ln an effort to attain 3.0 bar maxi- mum at 50 l/min.

A full size drawing of our proposed valve is being sent express mail. Please note that this drawing does not show the thinned wall section nor your fittings,

Price and delivery is stated below.

Description QtY Price Delivery

Coaxial Solenoid Valve 1 $1 , 200.00 60 days (normally closed)

5 $875.00 60 days

10 $650.00 120 days

Prices stated are in U.S. dollars. Delivery is F.O.B. Spring- field, New Jersey, USA. Contract is subject to the enclosed Valcor Terms and Conditions.

‘~ALCOR)

VALCOR ENGINEERING CORPORATION 2 LAWRENCE ROAD. SPRINGFIELD. NEW JERSEY 07081 U S A o ( 2 0 1 ) 467-8400

W X 710.996 5976 CABLE VALCOR

FAX (201 1467.8382

f

October 31, 1994

INSTITUTO TECNOLOGICO GEOMINERO DE ESPAf4A ( A la atención de Carlos Martinez Navarrete) C/Rios Rosas 23 28003 Madrid SPAIN

Attention: Mr. Carlos Martinez Navarrete

Subject: Borehole injection test valve

Reference: Your fax letter of 27 Oct 1994

Dear M r . Navarrete:

1 will be pleased to answer your two questions:

1. The V68000-115-8-1 valve 1s a pllot operated valve. The valve remains closed without electrical power with or without fluid pressure. However, in order to open the valve, a minimum fluid pressure must be available to open the pllot section of the valve, which in turn opens the valve.

In order for a valve of small size to open against the force of your pressures and flows, a pilot operated section is needed. There are many valves that can operate directly against your forces (ie. without a pilot section), but they have very large solenoids and slow response times. 1 am not aware of any designs that would fit within your envelope requirements.

1 also want to reiterate the flow capacity of our valve. We understand the maximum flow rate will be 50 liters/minute. Our valve will open and close at this flow rate. We do not, however,

- _- - _

know the capacity of your pump. I f you deliver a flow rate greater than 50 liters/minute, our valve may not be able to I

I

We can guarantee closure at 50 liters/minute, 4ut not at any value greater than this. 1 to determine maximum flow rate with full shutoff capability before putting the valve in the ground. l

l 2 . The electronic signal conductor cable you specify may be able to work with our valve if you supply sufflcient voltage and power. Our valve requires 1.1 Amps and 20 VDC at room tempera-

You may wish to run a ground test

.

VALCOR ENGINEERING C

Page 2 ITGE

ture at the valve. Solenoid coil resistance is 19 ohms. The figure below shows the schematic.

Based on your wire size, we calculated the resistance of 1000 meters of wire to be 38.17 ohms. Therefore, total resistance is 38.17 ohms x 2 wlres of 1000 m length + 19 ohms coil resistance = 95.3 ohms. At 95.3 ohms resistance, you will need to supply 104.8 VDC in order to provide 20 VDC and 1.1 Amp at our valve.

38.17 A

1 hope this inforrnation has been beneficial. 1 have been in- formed by our factory that your valves will ship within one or two days. We hope you will have a successful test. Please inform u8 of the operation of our valve.

Very truly,

MarketM-Manager

cc: G.Landberg, B.Ouai1, A.Palomo/Spain

ML000813.ltr

2 Dacember 1994

Coreaer, S . A .

Madrld 28003 Bpaln

HaUdeB, 23-2-G

Attantion: M r . A . Palomo

Bubject: ITCE valve

Dear Mr. Palomo:

We recelved the attsched fac8lmilo letter today. encioeed. Pleese paes them on t o Mr. Navarette.

Our anewere are

1. 50 llters/min.

Tha moxlmum flow rste of the two valves in your poeseeiíiion is

2 . X understand your confueion. Thio eummer w e testad the valve at 50 litere/min to determine the preaeure drop. A t 50 litera/min the mnximum preasure drop i u 5 . 2 bar ( 7 5 . 4 psld). Calculated preaeure drop based on C. = 1.58 is 4 . 8 bar ( 6 9 . 9 psid). The 30 liters/min mar flow conditíon shown ín our Accep- tance Teert Procedure (ATP) represento the t 0 B t conditíon f o r acceptance before shipping the valve. A t 30 litere/min the valve preaeure drop is 2 . 7 6 bar ( 4 0 psid). Nominal ffow is 37.9 liters/min (10 gal/min) a8 shown under number 7 . 0 on our ATP. Maximum flow is 50 l iters/rnin.

3 . The C. = 1.58.

We have Borne queetlone f o r you regaráing your intsrest in procur- ing additional valveu exactly meeting your pressure drop crlte- r ia - F i r e t , what le the maximum f l u i d preesure (pump preueure + head preesure at maximum depth)? Gecond, í n oráer to reduce prseeure drop w e wlll lncrease thrs valve etroke and enlarge some interna1 pasesaga.. In order tu aoclst ua in th i . moáification. during vaive operation can you provide M aáditionai minímum 5 volte dc to open the valve? This aáditlonal pousr allowo u8 t0 increase stroke againot a ntronyer oprlng.

VALCOR ENGINEERING CORPORATION 2 LAWRENCE RD. SPRINGFIEa, NJ 07081 U.S.A. (201)467-8400 FAX: (201)467-4905 AND/OR (201)467-8382 FACSIMILE MESSAGE

DATE: March 8, 1996

TO: A. Palomo

COMPANY: Coreser, S.A.

CITY: Madrid, Spain

FAX NO: 011341915530983

MESSAGE

Ref: IGT Repurchase of Solenoid Valves Valcor Proposal A961-050

NO. OF PAGES:

FROM: DON ROBERTORI

DEPT: APPLICATIONS ENG

Please excuse our late response. We have reviewed our estimatc several times to locate a possible error. Our original cost estimates have not been met, and it appears that the original price of 2 pcs, at $1200.00 ea. was an error.

Based on current cost estimates f o r a 6 piece quantity of Valcc P.N. V68000-115-8-1-1 is This price includes al1 acceptance testing, and changes that occurrec when the valves were returned last summer for repair.

Terms of sale would be Pro-Forma invoice as before. An alterni term could include wire transfer, if this would be better for IGT. Al1 pricing is firm for acceptance for 60 days from proposal date. Pricing is FOB Springfield, NJ USA (factory). Thank you for your interest in Valcor Products. If you have anj questions, please contact the undersigned.

Tliank y o u for your interest in Valcor Engineering Corporation. i f any point is unclear, or if any point requires clarificatioi please do not hesitate to contact us.

Sincerely,

Valcor Engineering Corporation

Don Robertori Senior Applications Engineer

COñESER S-A.

MAUDES 23, 2G 28003 MADRID

CIF : A-78 6 4 8425

S/Ref - Yúur/Ref.

Inst. TECNOLOGICO GEOMINERO =os Rosas 23 28003 MADRID A t : C a r l o s Martinez

N / R e f . FECHA üur/Ref. D a t e Valv. Valcor 28-5-96

Muy Sres nuestros: De acuerdo con su so l ic i tud tenemos el

gusto de enviarles nuestra oferta del material requerido:

3 Unid. Valvulas Valcor Mod. V68000-115-8-1-1 Plazo de entrega: 20 semanas Condiciones de entrega, los precios e s t a n ofertados en

base a una paridad del dolar de 1 3 0 ptac, cualquier variacion que 88 rrcduzza en GI? +- 3% les sera factUrada/abonado er; factura separada.

Precio unitario: 6 6 4 . 0 9 2 ptas E s t e precio incluye el tramsporte a sus instalaciones de

CantoBlanco. Las ccndiciones de p ~ c serar! a 90 d i a o fecha Ercczira,

el retraso en el pago producira una nbta de cargo del 1,5 % mensual que se liquidara por quincenas e n caso de retraso.

bn espera de sus noticias les saludamos a t t e .

L

ANEXO 5.2: MANUAL DEL PACKER CON DISPOSITIVO

DE MUELLES

El packer con dispositivo de 6 muelles comprimiéndolos para facilitar su

desinflado corresponde a un diseño efectuado específicamente por el

ITGE. Su funcionamiento y características técnicas han sido descritos

previamente. En el documento referido a la Celda de Presión se incluyen,

además de sus características, los ensayos efectuados por el ITGE para

comprobar su funcionamiento a diferentes presiones.

En el presente Anexo se incluye los elementos y dimensiones del citado

dispositivo.

DISPOSITIVO DE 6 MUELLES COMPRIMIENDOLOS PARA FACILITAR EL DESINFLADO DE LOS PACKER