Description

Cased Hole Drill test testing Multicyle circulating valve OMNI

Product Description

Payment & Shipping Terms Supply Capacity
Unit Price: 100.0 USD Production Capacity: 10sets/month
Trade Term: FOB,CFR Packing: plywood
Payment Terms: L/C, T/T Delivery Date: 35days
Min. Order: 1 Set/Sets
Means of Transport: Ocean, Air, Land

Cased Hole Drill test testing Multicyle circulating valve OMNI

Cased Hole Drill test testing Multicyle circulating valve OMNI

Brief introduction

OMNI circulating valve is a full opening, annulus pressure-operated re-closable circulating valve which can be open and closed many times. The tool is operated by repeatedly cycling the annulus pressure up to a predetermined value and then releasing this pressure.

OMIN Vale is acceptable for the full-opening formation testing in cased hole, oil tube tradition perforation, tube string testing and cycle operation in the conjunction of perforation and full-opening formation testing. It overcomes the shortcomings of some other circulating valve, at a certain position, can use the annulus pressure to operate other tools many times and there is no influence upon the OMNI circulating valve. Because of the ability of opening and closing the well many times, it can carry on acidification and fracturing etc. other well stimulations in the end of the full-opening formation test. Using the valve can make the test program simple and reduce the reconnoitering cost greatly.

OMNI circulating valve has two kinds: 3 7/8″ and 5″. They all can run in subsurface environment which contains acid.

No Specification 5″
1 OD 127.5mm
2 ID 57mm
3 Length 6555mm
4 Working pressure 105Mpa
5 Ball valve Open Differential pressure 35Mpa
6 Ball valve top and bottom differential pressure 70Mpa
7 Internal Pressure strength 146Mpa
8 External pressure strength 136Mpa
9 Tensile strength 2034KN
10 Torque strength 31.6KN.m
11 Circulating Flow area 2280mm2
12 Service H2S,NACE MR0175(>175oF)
13 Working temperature -29℃+204℃
14 Connection thread 3 7/8″CAS.B×P or 3 1/2″IF.B×P

Working principle

OMNI circulating valve completes the function by increasing and releasing the annulus pressure .

According to the construction features it can be learned when increasing the annulus pressure, the piston push the hydraulic oil to move to the left, and the hydraulic oil push the check valve assemblies to move to the left until to the upper dead point, then the hydraulic oil pass the passageway and push the floating piston in the nitrogen chamber, thus the pressure is saved in the nitrogen chamber.

When releasing the pressure, because the pressure in nitrogen chamber is above the annulus

pressure ,the nitrogen pressure push the floating piston in the nitrogen chamber and then to hydraulic oil move to the right, the check valve assemblies to move to the right under pushing of hydraulic oil until

to the lower dead point, the hydraulic oil make the nitrogen pressure equal to the annulus pressure.

Nitrogen Charging Table-5″ OMIN Circulating Valve
Surface temperature:0oF                                                                Pressure Unit: PSI Temperature Unit: oF

HYDROSTATIC PRESSURE
Mud Temp. 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000 13000 14000 15000 16000 17000
50 1578 2310 3011 3630 4348 4985 5619 6253 6885 7504 8104 8710 9254 9843 10403 10941
75 1488 2169 2820 3444 4064 4654 5247 5842 6418 7003 7563 8141 8663 9198 9739 10280
100 1406 2045 2652 3239 3814 4373 4930 5499 6024 6577 7118 7651 8182 8694 9206 9731
125 1337 1940 2511 3065 3601 4133 4650 5176 5679 6189 6701 7206 7709 8211 8693 9175
150 1274 1845 2385 2911 3416 3918 4408 4897 5380 5860 6345 6830 7307 7795 8269 8730
175 1219 1762 2275 2772 3252 3723 4193 4650 5108 5561 6013 6473 6930 7386 7849 8294
200 1168 1687 2175 2648 3106 3552 4001 4433 4870 5302 5734 6165 6602 7043 7477 7920
225 1122 1620 2086 2536 2975 3401 3822 4242 4654 5067 5477 5881 6294 6718 7136 7552
250 1080 1558 2005 2436 2856 3264 3666 4068 4458 4853 5246 5630 6016 6421 6825 7225
275 1042 1502 1931 2345 2748 3140 3524 3906 4285 4659 5032 5401 5770 6150 6522 6906
300 1006 1450 1864 2261 2649 3025 3395 3760 4125 4482 4840 5196 5546 5907 6274 6645
325 683 1403 1802 2185 2559 2922 3277 3627 3978 4323 4661 4999 5338 5683 6028 6384
350 658 1358 1744 2116 2476 2827 3169 3507 3841 4178 4498 4826 5151 5483 5816 615
375 636 1317 1691 2051 2399 2737 3070 3393 3715 4038 4351 4661 4973 5295 5614 5933
400 615 1279 1642 1990 2328 2653 2977 3289 3600 3910 4217 4511 4815 5123 5432 5741
425 596 1243 1596 1934 2262 2578 2890 3194 3494 3790 4089 4375 4664 4961 5259 5556
450 578 1209 1553 1881 2200 2508 2810 3107 3395 3684 3971 4251 4526 4815 5102 5390
475 561 1178 1512 1832 2143 2441 2735 3022 3318 3581 3857 4133 4399 4676 4954 5233
500 545 1148 1474 1786 2089 2379 2664 2944 3247 3486 3754 4023 4283 4548 4820 5090