Introduction

Magnetic Thickness Tools

The combination of Multi-finger Imaging Tool&Magnetic Thickness Tools for cased hole logging can reflect accurate and reliable measurements for pipe corrosion and scale deposition. The logging tools can be run in one string, which is helpful for time-saving and cost-saving.

MIT+MTT Case study

Cased Hole Logging: 24-arm Multi-finger Imaging Tool&Magnetic Thickness Tool.

Damage1: 24-arm Multi-finger Imaging Tool curve has no change while Magnetic Thickness Tool has variation, which means the damage is in the casing's outer wall. Damage curve 1 toward the right means the outer wall is thickened.

Damage2: 24-arm Multi-finger Imaging Tool curve changes slightly while the Magnetic Thickness Tool curve deformation is larger, which means the outer wall of the casing has deformation.

Introduction

SITAN encoding Grading Perforating tools applies to cable transport perforation work, and this perforating tool can accomplish all the layers' perforation work in one trip. Surface equipment of this perforating tool include grading perforating control panel, portable detector and grading perforating software. Downhole devices of the perforating tools include cable head for grading perforation, CCL, sliding sleeve, roller connector, perforating gun, anti-seismic gamma tool, perforating pressure gauge, selective electrical switch. The surface control panel and software of perforating system cooperate with downhole devices to achieve encoding selective grading perforating.

Feature

• 1. Several layers' perforation is accomplished in one trip with single core cable dropping down.
• 2. Two ways communication is achieved between downhole electric switch and ground. Electric switch state can be checked.
• 3. Each downhole electric switch is monitoring by software in real time.

Introduction

SITAN MP series Noise Logging Tool can identify the gas production horizon and fluid absorption horizon in an open hole. In the cased hole, SITAN MP series Noise Logging Tool can detect bypass channel position outside the pipe, fluid type, pipe column damage, thread leakage, in-pipe flow, and flow rate of perforation hole.

Feature

• 1. No need to contact casing, no pollution, no radiation.
• 2. Detection of casing leakage and bypass channel of the outside pipe according to measured sound frequency.
• 3. Dual working modes: real-time and memory.
• 4. High receive sensitivity.
• 5. Can connect with Multi Finger Caliper (MFC) and other instruments to measure the actual conditions of wells more comprehensively.

Application

• Determination of the channeling position outside the casing.
• Identification of casing or tubing leaks.
• Determination of case collar leakage
• Identification of leaking materials in wells (water, gas, and oil).
• Analysis of cementing quality.

Introduction

STGY89-200D array induction logging tool measures formation resistivity based on the electromagnetic induction principle. In one logging trip, the STGY89-200D array induction tool provides 3 different vertical resolution resistivity curves, 6 different depth of investigation (DOI) resistivity curves, and 6 different DOI true resistivity curves, from which one can evaluate resistivity spatial distribution, mud invasion, reservoir fluid type, oil, gas, and water contact interfaces, and can calculate water saturation and improve logging interpretation accuracy. Array induction tool logging data are of great significance for thin reservoirs search and low resistivity reservoirs discovery.

Feature

• 1. Detection range as high as 2000Ω·m.
• 2. Simple adaption to the EILOG system with a change of mechanical connector and interface board.