CN203499601U - Well-cementing spacer fluid evaluation device - Google Patents
Well-cementing spacer fluid evaluation device Download PDFInfo
- Publication number
- CN203499601U CN203499601U CN201320315758.5U CN201320315758U CN203499601U CN 203499601 U CN203499601 U CN 203499601U CN 201320315758 U CN201320315758 U CN 201320315758U CN 203499601 U CN203499601 U CN 203499601U
- Authority
- CN
- China
- Prior art keywords
- rock core
- outer tube
- spacer fluid
- well
- insulating liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a well-cementing spacer fluid evaluation device, which comprises an outer tube and a rock core, wherein the rock core is arranged in the hollow cavity of the outer tube; the left and right sides of the cavity of the outer tube are provided with a left rock core tray, a left rock core chuck, a right rock core tray and a right rock core chuck which are in threaded connection; the rock core is inserted between the left rock core and the right rock core; the left rock core tray and the right rock core tray have annular disk-shaped structures; left overflow holes and right overflow holes are uniformly distributed in the end faces, which are in threaded connection with the left and right rock core chucks, of the left and the right rock core trays; the left and right ends of the outer tube are in threaded connection with left and right end cover joints. According to the well-cementing spacer fluid evaluation device, the spacer fluid flushing efficiency can be calculated accurately, the spacer fluid flushing effect is evaluated, and the displacement efficiency and well-cementing quality of cement slurry can be effectively increased by selecting spacer fluid which is high in flushing efficiency; the well-cementing spacer fluid evaluation device is simple in structure, and is high in practicability.
Description
Technical field
The utility model relates to a kind of well cementation insulating liquid evaluating apparatus.
Background technology
In oil drilling completion work progress, need to carry out well cementing operation.If the compatibility between the drilling fluid using during drilling well and cement paste is poor or incompatible, the two direct contact can cause the pollution of cement paste, cement paste mobility variation, thickening time are shortened, and cement strength reduces, and has a strong impact on cementing operation safety and cementing quality.For fear of drilling fluid, contact with the direct of cement paste, before cement injection, inject flushing liquor and the insulating liquid of some, rinse and be attached to the false filter cake on the borehole wall and casing wall, and carried out pit shaft, improve the bonding quality at first, second interface of well cementation.But, the problem such as when at present insulating liquid evaluating apparatus exists complex structure, simulation well cementation wellbore pressure and upward velocity accuracy be low.The disclosed a kind of front flushing fluid evaluator for well cementation of Chinese patent literature 201120186769.9, this instrument is used for evaluating flushing liquor flush efficiency.But mud cake compactness low, that form that this instrument exists complex structure, heat resisting and pressure resisting ability is poor, flushing liquor flush efficiency is evaluated to the low problem of accuracy.
Utility model content
The purpose of this utility model is to provide a kind of simple in structure, practical well cementation insulating liquid evaluating apparatus.
For achieving the above object, the utility model is by the following technical solutions:
Well cementation insulating liquid evaluating apparatus, comprise outer tube and rock core, described rock core is located in the cavity of outer tube hollow, the left and right sides of described outer tube cavity is provided with the left rock core pallet being threaded connection, left rock core chuck, right rock core pallet and right rock core chuck, described rock core is plugged between left rock core chuck and right rock core chuck, described left rock core pallet and right rock core pallet are ring discoid structure, a described left side, right rock core pallet is with left, on the end face that right rock core chuck is threaded, be evenly equipped with left flowing hole and right flowing hole, the two ends, left and right of described outer tube are threaded connection and are provided with left end cap joint and right end cap joint.
Described rock core is fixedly plugged between left and right rock core chuck by left jackscrew and right jackscrew.
The joint portion of described left and right end cap joint and outer tube is provided with left sealing mat and right sealing mat.
Well cementation insulating liquid evaluating apparatus of the present utility model can calculate insulating liquid flush efficiency accurately, and insulating liquid developing result is evaluated, by choosing the insulating liquid that insulating liquid flush efficiency is high, can effectively improve displacement efficiency of cement slurry and cementing quality, this well cementation insulating liquid evaluating apparatus is simple in structure, practical.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the utility model.
The specific embodiment
Embodiment of the present utility model, as shown in Figure 1: well cementation insulating liquid evaluating apparatus comprises outer tube 4 and rock core 5, rock core 5 is located in the cavity of outer tube 4 hollows, the left and right sides of outer tube 4 cavitys is provided with the left rock core pallet 3a being threaded connection, left rock core chuck 2a, right rock core pallet 3b and right rock core chuck 2b, rock core 5 is plugged between left rock core chuck 2a and right rock core chuck 2b, left rock core pallet 3a and right rock core pallet 3b are ring discoid structure, left, right rock core pallet is with left, on the end face that right rock core chuck is threaded, be evenly equipped with left flowing hole 8a and right flowing hole 8b, the two ends, left and right of outer tube 4 are threaded connection and are provided with left end cap joint 1a and right end cap joint 1b.Rock core 5 is fixedly plugged between left and right rock core chuck by left jackscrew 6a and right jackscrew 6b.The joint portion of left and right end cap joint and outer tube 4 is provided with left sealing mat 7a and right sealing mat 7b.
The course of work of the present utility model is:
1, rock core 5 is soaked to 10min in clear water, static 40min, weighs, and is labeled as G
0, be arranged on outer tube 4 inside.
2, right end cap joint 1b is connected with high pressure gate screw thread, and make gate in opening position, pump line line is threaded with left end cap joint 1a, after turn on pump, make drilling fluid termination of pumping after the interior circulation 2 ~ 3min of outer tube 4, heater is wrapped in outside outer tube 4, opening power is heated to design temperature again, closes high pressure gate; Open pump, outer tube 4 chamber pressures are risen to after design pressure, constant temperature voltage stabilizing 2h.
3, open high pressure gate, outer tube 4 chamber pressures are discharged, dismantle left end cap joint 1a, removal of core 5, standing 40min, makes rock core 5 form mud cake, weighs, and is recorded as G
1.
4, rock core 5 is placed in to outer tube 4 inside, left end cap joint 1a is installed, well cementation insulating liquid is pumped into outer tube 4 with pump by design discharge capacity, control high pressure gate flow and circulating pressure, rock core 5 is rinsed to 8 ~ 10min, termination of pumping pressure release, closes heater.
5, removal of core 5, and standing 40min weighs and records G
2.
6, according to following formula, calculate, draw insulating liquid flush efficiency A
G
0for core quality, g;
G
1for the weight of rock core after formation mud cake, g;
G
2for the weight that insulating liquid rinses rear rock core, g.
7, by insulating liquid flush efficiency A, insulating liquid developing result is evaluated, chosen the high insulating liquid of insulating liquid flush efficiency A, as well cementation insulating liquid, effectively improve displacement efficiency of cement slurry and cementing quality.
The well cementation insulating liquid evaluating apparatus of above-described embodiment can calculate insulating liquid flush efficiency accurately, and insulating liquid developing result is evaluated, by choosing the insulating liquid that insulating liquid flush efficiency is high, can effectively improve displacement efficiency of cement slurry and cementing quality, well cementation insulating liquid evaluating apparatus of the present utility model is simple in structure, practical.
Claims (3)
1. well cementation insulating liquid evaluating apparatus, it is characterized in that: comprise outer tube (4) and rock core (5), described rock core (5) is located in the cavity of outer tube (4) hollow, the left and right sides of described outer tube (4) cavity is provided with the left rock core pallet (3a) being threaded connection, left rock core chuck (2a), right rock core pallet (3b) and right rock core chuck (2b), described rock core (5) is plugged between left rock core chuck (2a) and right rock core chuck (2b), described left rock core pallet (3a) and right rock core pallet (3b) are ring discoid structure, a described left side, right rock core pallet is with left, on the end face that right rock core chuck is threaded, be evenly equipped with left flowing hole (8a) and right flowing hole (8b), the two ends, left and right of described outer tube (4) are threaded connection and are provided with left end cap joint (1a) and right end cap joint (1b).
2. well cementation insulating liquid evaluating apparatus according to claim 1, is characterized in that: described rock core (5) is fixedly plugged between left and right rock core chuck by left jackscrew (6a) and right jackscrew (6b).
3. well cementation insulating liquid evaluating apparatus according to claim 1 and 2, is characterized in that: the joint portion of described left and right end cap joint and outer tube (4) is provided with left sealing mat (7a) and right sealing mat (7b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320315758.5U CN203499601U (en) | 2013-06-04 | 2013-06-04 | Well-cementing spacer fluid evaluation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320315758.5U CN203499601U (en) | 2013-06-04 | 2013-06-04 | Well-cementing spacer fluid evaluation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203499601U true CN203499601U (en) | 2014-03-26 |
Family
ID=50330590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320315758.5U Expired - Fee Related CN203499601U (en) | 2013-06-04 | 2013-06-04 | Well-cementing spacer fluid evaluation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203499601U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422027A (en) * | 2015-12-17 | 2016-03-23 | 中国石油天然气集团公司 | Washing simulation device and method for well cementation pre-flush fluid |
| CN105422025A (en) * | 2014-09-18 | 2016-03-23 | 中国石油化工股份有限公司 | Device and method used for evaluating flushing liquid |
-
2013
- 2013-06-04 CN CN201320315758.5U patent/CN203499601U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422025A (en) * | 2014-09-18 | 2016-03-23 | 中国石油化工股份有限公司 | Device and method used for evaluating flushing liquid |
| CN105422027A (en) * | 2015-12-17 | 2016-03-23 | 中国石油天然气集团公司 | Washing simulation device and method for well cementation pre-flush fluid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2018192042A1 (en) | Environmentally friendly capsular bag-type downhole karst cave blocking device, and blocking method therefor | |
| CN112903961B (en) | Using method of device for simulating underground drilling fluid circulation to form mud cakes | |
| CN108798660B (en) | Stress measuring device by hydraulic fracturing method | |
| CN108166968B (en) | Experimental system and method for measuring influence of soaking on permeability of compact rock core | |
| CN203499601U (en) | Well-cementing spacer fluid evaluation device | |
| CN106703744A (en) | High-pressure-bearing plugging method for fracturing wellhole | |
| CN101122220A (en) | Swelling type screen pipe suspension method and swelling type screen pipe hanger | |
| CN106202716A (en) | A kind of oil field oil-producing well thermal washing parameter optimization method | |
| CN203626656U (en) | Positive circulation multi-nozzle negative pressure generator | |
| CN206190240U (en) | Pumpingh well tubular column | |
| RU2702438C1 (en) | Depression-repression drilling assembly for completion and repair of well | |
| CN204877372U (en) | Three plugs of high temperature high pressure well well cementation cementing -head device | |
| CN207436971U (en) | The continuous circulating valve of high pressure and the continuous circulator of high pressure | |
| CN204371248U (en) | Anti-pollution tubular column | |
| CN208918526U (en) | A kind of underground thick oil sampler | |
| CN204851055U (en) | Anti - turbodrill that circulates | |
| CN114635659A (en) | Ground drilling negative pressure type leaking stratum wellhead plugging device and method | |
| CN205636728U (en) | Civil engineering constructs composite pile | |
| CN112855100B (en) | Underground in-situ fixed online profile control and drive device, tubular column and method | |
| CN205301145U (en) | Experimental device for detect and seal scurrying agent shutoff intensity | |
| CN212428734U (en) | Workover bailing equipment with clearance function | |
| CN103883248A (en) | Geothermal well completion method | |
| CN103132934A (en) | Pumping conventional well flushing method of fixed tubes, rods and pillars of sand-prevention pumping well | |
| CN202745729U (en) | Reverse circulation continuous oil pipe centralizer | |
| CN202338235U (en) | Snubbing well-flushing pipe column for oil well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151203 Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee after: Sinopec Corp. Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: Sinopec Corp. Patentee before: WELL CEMENTATION COMPANY OF SINOPEC ZHONGYUAN PETROLEUM ENGINEERING CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20160604 |