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我站试制的CSG-CQ-1固井声幅—磁定位仪,经过两年多时间在三十余口井(最大井深2200米)的试用,取得了较好的效果。 CSG-CQ-1固井声幅—磁定位仪的结构如图1所示。其特点是以直径约为89毫米的玻璃钢管代替通常所用的钢刻槽隔声体。玻璃钢管的声速约为275微秒/米,而钢套管的声速约为182微秒/米,因此能够确保钢套管的首波不受沿玻璃钢管
After a trial of CSG-CQ-1 cementing sound amplitude-magnetic locator, the trial of more than 30 wells (maximum depth of 2200m) was completed in more than two years and achieved good results. CSG-CQ-1 cementing sound amplitude - the structure of the magnetic locator shown in Figure 1. It is characterized by a diameter of about 89 mm glass tube instead of commonly used steel notch sound insulation body. Fiberglass pipes sound velocity of about 275 microseconds / meter, while the steel casing sound velocity of about 182 microseconds / meter, it can ensure the first wave of steel casing is not along the glass tube