CN203769688U - Solid phase filtering device for workover fluid - Google Patents

Abstract

The utility model discloses a solid phase filtering device for workover fluid, relates to a solid phase filtering technology for workover fluid, and overcomes the limitations in the prior art. The solid phase filtering device is formed by the connection of a first stock solution tank, a first submerged pump, a water inlet guide pipe, a filter tank body, a high-density filter cotton layer, a well control pipeline, a second stock solution tank and a second submerged pump, wherein the first submerged pump is arranged in the first stock solution tank, one end of the water inlet guide pipe is connected with the first submerged pump, and the other end of the water inlet guide pipe is connected with the filter tank body; the filter tank body is located in the second stock solution tank, and the high-density filter cotton layer is arranged on the filter tank body; the second submerged pump is located in the second stock solution storage tank, and the well control pipeline is connected on the second submerged pump.

Description

Workover fluid solid phase filter

Technical field: the utility model relates to a kind of workover fluid solid phase filtering technique, especially workover fluid solid phase filter.

Background technology: the essence of formation damage is exactly the reduction of oil-gas Layer permeability, exists serious problems in gas well workover treatment process at present, and the one, owing to having used a large amount of workover fluids, make gas-bearing formation be subject to for a long time the immersion of workover fluid; The 2nd, often enter well killing fluid before well because transportation tank car is unholiness, the problem such as at the bottom of the standby mud of flow container, in job execution process secondary pollution is serious, has mixedly stirred a large amount of solid phase particles, enters the interstitial channels that can directly stop up gas-bearing formation after well, affects gas well yield.

Summary of the invention: the purpose of this utility model is to provide a kind of workover fluid solid phase filter of protecting oil-gas Layer, it has overcome the shortcoming that current technology exists, the purpose of this utility model is to realize like this, it is to be formed by connecting by a standby liquid pool, submersible pump, penstock, Rose Box body, highly dense filter cotton floor, kill line, No. two standby liquid pools, No. two submersible pumps, in a standby liquid pool, submersible pump is installed No. one, one end of penstock is connected with a submersible pump, and the other end of penstock is connected with Rose Box body; Rose Box body is positioned at standby liquid pool No. two, has highly dense filter cotton layer on Rose Box body; No. two submersible pump is positioned at standby liquid pool No. two, on No. two submersible pumps, is connecting kill line.

Application process: unfiltered workover fluid in a standby liquid pool is pumped into Rose Box body with submersible pump, be filtered into low solid phase or the clean workover fluid without solid phase through highly dense filtering layer, then pump into pit shaft by No. two submersible pumps of No. two standby liquid pools; Filtering layer in Rose Box body is convenient to remove contamination at any time and take out cleaning; In addition, clean workover fluid after filtering is also convenient to add bactericide, scale preventative, and making becomes compatible with oil-gas Layer, not produce physical-chemical reaction high-quality water into the workover fluid of well, to bring into play to greatest extent the efficiency of operation well workover.

Brief description of the drawings: Fig. 1 is the structural representation of workover fluid solid phase filter, in figure 1, standby liquid pool 2, submersible pump 3, penstock 4, Rose Box body 5, highly dense filter cotton floor 6, kill line 7, No. two standby liquid pools 8, No. two submersible pumps

Detailed description of the invention: the utility model is to be formed by connecting by standby liquid pool 1, submersible pump 2, penstock 3, Rose Box body 4, highly dense filter cotton material 5, kill line 6, No. two standby liquid pools 7, No. two submersible pumps 8, in a standby liquid pool 1, submersible pump 2 is installed No. one, one end of penstock 3 is connected with a submersible pump 2, and the other end of penstock 3 is connected with Rose Box body 4; Rose Box body 4 is positioned at standby liquid pool 7 No. two, has highly dense filter cotton layer 5 on Rose Box body 4; No. two submersible pump 8 is positioned at standby liquid pool 7 No. two, on No. two submersible pumps 8, is connecting kill line 6.

Claims (1)

1. workover fluid solid phase filter, it is to be formed by connecting by standby liquid pool (1), a submersible pump (2), penstock (3), Rose Box body (4), highly dense filter cotton material (5), kill line (6), No. two standby liquid pools (7), No. two submersible pumps (8), it is characterized in that: in a standby liquid pool (1), a submersible pump (2) is installed, one end of penstock (3) is connected with a submersible pump (2), and the other end of penstock (3) is connected with Rose Box body (4); Rose Box these (4) is positioned at standby liquid pool (7) No. two, has highly dense filter cotton layer (5) on Rose Box body (4); No. two submersible pumps (8) are positioned at standby liquid pool (7) No. two, are connecting kill line (6) on No. two submersible pumps (8).